This record as markdown: /tools/creativelead-unclick/resend-send-email.md
What resend_send_email does on UnClick
AI agents use resend_send_email to create or update resources in UnClick, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your UnClick environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
to | string | — | |
from | string | — | |
html | string | — | |
text | string | — | |
api_key | string | — | |
subject | string | — |
Parameters from the server's own tool schema.
Why resend_send_email is rated Medium
Sending an email creates a new artifact (the sent message) and modifies external state (recipient's inbox), making it a Write operation. It's not Read (no query), Execute (not running arbitrary code), Destructive (reversible via deletion), or Financial (no money movement).
From the tool's definition Tool name 'resend_send_email' and description 'Send an email using Resend' indicate the tool creates and transmits a new email message.
Risk signalsAccepts raw HTML/template content (html) · Handles credentials or secrets (api_key)
Attacks that exploit this kind of access
The rule that runs resend_send_email safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For resend_send_email, this is the rule to start with:
resend_send_email stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every resend_send_email call is checked against it from then on.
Questions about resend_send_email
Send an email using Resend. It is categorised as a Write tool in the UnClick MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
resend_send_email accepts 6 parameters: to, from, html, text, api_key, subject. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for resend_send_email: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches UnClick. Nothing to install.
resend_send_email is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the resend_send_email rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for resend_send_email. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
resend_send_email is provided by the UnClick MCP server (creativelead/unclick). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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